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DNFB(70-34-8)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
DNFB

Synonyms
1,2,4-Fluorodinitrobenzene
2,4-Dinitro-1-fluorobenzene
2,4-Dinitrofluorobenzene
Dinitrofluorobenzene
DNFB

CAS
70-34-8

Formula
C6H3FN2O4

Molecular Weight
186.1

EINECS
200-734-3

RTECS
CZ7800000

RTECS Class
Agricultural Chemical and Pesticide; Mutagen

Merck
13,4199

Beilstein/Gmelin
398632

Beilstein Reference
4-05-00-00742

EC Class
sensitizing

Physical and Chemical Properties

Appearance
Clear yellow crystals or yellow crystalline solid.

Solubility in water
Slightly soluble

Melting Point
24 - 26

Boiling Point
296

Vapor Pressure
0.003 (25 C)

Density
1.4718 g/cm3 (85 C)

Partition Coefficient
1.16

Heat Of Vaporization
51.4 kJ/mol

Usage
Reagent for labeling prc: free amino acid groups, in modified wohl degradations.

Refractive Index
1.56997 (20 C)

First Aid Measures

Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.

Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.

Skin
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.

Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Handling
Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Inhalation
May cause severe irritation of the respiratory tract with possible burns.

Skin
Causes skin irritation and possible severe skin irritation especially if the skin is wet or moist.

Eyes
Causes eye irritation and possible burns.

Ingestion
May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns. Ingestion of large amounts of fluoride may include salivation, nausea, vomiting, abdominal pain, fever, labored breathing. Exposure to fluoride compounds can result in systemic toxic effects on the heart, liver, and kidneys. It may also deplete calcium levels in the body leading to hypocalcemia and death. Acute oral toxicity tests have shown lethality with central nervous system signs in mice.

Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.

EC Risk Phrase
R 45 46 23/24/25 43

EC Safety Phrase
S 53 45

UN (DOT)
2810

Exposure Controls/Personal Protection

Personal Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.

Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

Exposure Effects
Chronic inhalation and ingestion may cause fluorosis with skeletal abnormalities. Chronic exposure to fluoride compounds may cause systemic toxicity.

Fire Fighting Measures

Flash Point
133

Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.

Fire Potential
This chemical is probably combustible.